Control of liquid-solid interface in electromagnetic casting

Details Control of liquid-solid interface in electromagnetic casting Control of liquid-solid interface in electromagnetic casting

B - Operations, Transporting

22

D

22/166, 22/49

B22D 27/02 (2006.01) B22D 11/01 (2006.01) B22D 11/18 (2006.01)

Patent

CA 1185064

ABSTRACT OF THE DISCLOSURE An electromagnetic casting system for casting materials comprising the apparatus and process for electromagnetically containing and forming molten material during a casting run into a desired shape. During the casting run, a liquid-solid interface defines molten material head and solid material portions of the casting. The electromagnetic containing and forming device includes an inductor applying a magnetic field to the molten material. The magnetic field defines a containment zone for the molten material. An alter- nating current is applied to the inductor to generate the magnetic field. The improvement comprises controlling the location of the liquid-solid interface in the containment zone. The location of the liquid- solid interface along the periphery of the casting is monitored. In response to the monitored location, the volume of molten material in the containment zone is changed so as to keep the location of the liquid-solid interface substantially constant.

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